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Finding the Fourth Proportional to 605,140.70, 907,711.05 and 510,662.30

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Solution

The fourth proportional to 605,140.70, 907,711.05 and 510,662.30 is: 765,993.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,140.70 : 907,711.05 = 510,662.30 : x
  2. Step 2: Convert to fraction form
    605,140.70/907,711.05 = 510,662.30/x
  3. Step 3: Cross multiply
    605,140.70x = 907,711.05 × 510,662.30
  4. Step 4: Simplify right side
    605,140.70x = 463,533,812,528.42
  5. Step 5: Solve for x
    x = 463,533,812,528.42/605,140.70
  6. Step 6: Final answer
    x = 765,993.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.